Helminthiasis is an infection caused by parasitic worms, known as helminths. These worms can live in the intestines or other parts of the body, leading to various health issues. Common types of helminths include roundworms, tapeworms, and flukes. People can become infected through contaminated food, water, or soil, often in areas with poor sanitation. Symptoms of helminthiasis can vary but may include abdominal pain, diarrhea, and weight loss. Treatment typically involves medications that kill the worms, helping to restore health. Preventive measures, such as proper hygiene and sanitation, are essential to reduce the risk of infection.